body{
    box-sizing: border-box;
    background: #fff url("../imgs/loginreg/bg.jpg") no-repeat;
    background-size: cover;
    width: 100%;
    height: 100%;
}
.container{
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.container > * {
    margin: 12px 0;
}
.container>header {
    font-size: 18px;
    font-weight: bold;
}

.rows{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.rows .label{
    font-size: 16px;
    width: 120px;
    text-align: right;
    margin-right: 12px;
}
.rows .input{
    width: 240px;
}
.rows .yzm{
    width: 115px;
}
.rows .yzm:last-child{
    width: 120px;
    margin-left: 5px;
    cursor: pointer;
}
.rows .input input,.rows .yzm input{
    box-sizing: border-box;
    margin: 0;
    font-variant: tabular-nums;
    list-style: none;
    font-feature-settings: "tnum";
    position: relative;
    display: inline-block;
    width: 100%;
    min-width: 0;
    padding: 4px 11px;
    color: #000000d9;
    font-size: 14px;
    line-height: 1.5715;
    background-color: #fff;
    background-image: none;
    border: 1px solid #d9d9d9;
    border-radius: 2px;
    transition: all .3s;
}

input[type='submit'] {
    width: 120px;
    height: 32px;
    border: none;
    outline: none;
    color: #fff;
    background: #16418a;
    cursor: pointer;
}
.red{
    color: red;
}